Drying rack capable of automatically cutting off power for drying towels and clothes

Abstract

An automatic power-off drying rack for drying towels and clothes comprises a rack body, the rack body is provided with a transverse rod used for containing the towels and the clothes and a hot air device used for drying the towels and the clothes, the rack body is further provided with a circuit board, and the transverse rod is provided with a detection device used for detecting the resistance value or the humidity value. The detection device is provided with a contact end making contact with towels and clothes, the contact end protrudes out of the cross rod, and the circuit board is electrically connected with the hot air device and the detection device. The detection device used for detecting the resistance value or the humidity value is arranged on the cross rod, the circuit board is arranged on the frame body, the detection device feeds back the resistance value or the humidity value to the circuit board, and the circuit board controls starting and stopping of the hot air device according to the resistance value or the humidity value. The circuit board MCU judges whether towels and clothes are dried or not according to the humidity value or the resistance value, when the humidity value or the resistance value reaches a set threshold value, it is judged that the towels and the clothes are dried, and therefore work of the hot air device is stopped, and the automatic power-off effect of drying is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of drying racks, in particular to a drying rack capable of automatically shutting off power when drying towels and clothes. Background Art

[0002] The drying rack (i.e., drying clothes rack) adds a drying function on the basis of the original function of the clothes rack, providing convenience for people to dry clothes quickly. The drying rack is provided with a hot air device for drying towels and clothes. The hot air device includes a PTC heating element and a fan. The hot air device generally requires the user to manually open or close it. If the user forgets or does not turn off the hot air device immediately after the towels and clothes are dried, it will cause a waste of electricity.

[0003] Therefore, further improvements are necessary. Summary of the invention

[0004] The purpose of the present invention is to provide a drying rack for towels and clothes that has a simple structure, no waste of excess electricity, good energy-saving effect, intelligence, and strong practicality and can automatically cut off the power supply, so as to overcome the shortcomings of the prior art.

[0005] A drying rack with automatic power-off for drying towels and clothes designed for this purpose comprises a frame body, a cross bar for placing towels and clothes and a hot air device for drying towels and clothes are arranged on the frame body, and the characteristics are: a circuit board is also arranged on the frame body, a detection device for detecting resistance value or humidity value is arranged on the cross bar, a contact end for contacting the towels and clothes is arranged on the detection device, the contact end protrudes from the cross bar, the circuit board is electrically connected to the hot air device and the detection device respectively, the detection device feeds back the resistance value or humidity value to the circuit board, and the circuit board controls the opening and closing of the hot air device according to the resistance value or humidity value.

[0006] An insulating sleeve is arranged on the crossbar, the insulating sleeve is arranged on the outer periphery of the detection device, and the contact end of the detection device protrudes out of the insulating sleeve.

[0007] The detection device is provided with a lead terminal, which is connected to the circuit board through an electric wire.

[0008] The wires are passed through the crossbars and the frame.

[0009] The detection device is two or more metal contacts which are spaced apart from each other. When the towel clothing has moisture, the two or more metal contacts are turned on and the resistance value is fed back to the circuit board.

[0010] The detection device is a humidity sensor, which feeds back the humidity value to the circuit board.

[0011] The circuit board is provided with a microcontroller for judging whether the towels and clothes are dried according to the humidity value or the resistance value.

[0012] The insulating sleeve is made of high temperature resistant nylon material.

[0013] An isolation circuit and a contact circuit are arranged on the circuit board.

[0014] The crossbars are distributed up and down on the frame.

[0015] The drying rack of the present invention has a detection device for detecting resistance value or humidity value arranged on the cross bar, and a circuit board arranged on the frame. The detection device feeds back the resistance value or humidity value to the circuit board, and the circuit board controls the opening and closing of the hot air device according to the resistance value or humidity value. Specifically, the circuit board MCU determines whether the towels and clothes are dried according to the humidity value or resistance value. When the humidity value or resistance value reaches a set threshold value, it is determined that the towels and clothes are dried, so that the circuit board MCU shuts down the hot air device, achieving the effect of automatic power-off during drying, without unnecessary waste of electricity, and achieving the effect of energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the drying rack in the first embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the overall structure of the drying rack in the second embodiment of the present invention.

[0018] Figure 3 This is a working principle diagram of the drying rack in the first embodiment of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] First embodiment: See also Figure 1 , Figure 3 The drying rack with automatic power-off for drying towels and clothes comprises a frame 1, on which a cross bar 2 for placing towels and clothes and a hot air device 11 for drying towels and clothes are arranged, and a circuit board 3 is also arranged on the frame 1, and a detection device for detecting a resistance value or a humidity value is arranged on the cross bar 2, and a contact end 9 for contacting the towels and clothes is arranged on the detection device, and the contact end 9 protrudes from the cross bar 2, and the circuit board 3 is electrically connected to the hot air device 11 and the detection device respectively, and the detection device feeds back the resistance value or the humidity value to the circuit board 4, and the circuit board 4 controls the opening and closing of the hot air device 11 according to the resistance value or the humidity value.

[0021] An insulating sleeve 6 is provided on the crossbar 2 and is sleeved on the outer periphery of the detection device. The contact end 9 of the detection device protrudes from the insulating sleeve 6 to insulate the detection device to prevent the user from touching the detection device and getting an electric shock.

[0022] The detection device is provided with a lead terminal 10 , and the lead terminal 10 is connected to the circuit board 4 through the wire 7 .

[0023] The electric wires 7 are passed through the crossbar 2 and the frame 1 to facilitate wiring.

[0024] The detection device is two metal contacts 3 that are spaced apart from each other. When the towels and clothes have moisture, more than two metal contacts 3 are turned on and the resistance value is fed back to the circuit board 4. Specifically, when the drying rack is in use, the towels and clothes are placed on the crossbar 2. When there is moisture on the clothes, more than two metal contacts 3 are turned on, and there will be resistance at the metal contacts 3. The size of the resistance depends on the amount of moisture on the clothes. The resistance value will be fed back to the circuit board 4. The principle is similar to the principle of measuring resistance with a multimeter. The circuit board MCU determines whether the towels and clothes are dry through the resistance value. When the towels and clothes have moisture, the resistance value is lower than the set threshold value. The circuit board MCU controls the hot air device 11 to start working. If the moisture has been dried, the resistance value will reach or exceed the set threshold value, and then the circuit board MCU determines that the towels and clothes have been dried, so that the circuit board MCU turns off the hot air device 11 to achieve the effect of automatic power off during drying.

[0025] The circuit board 4 is provided with a microcontroller 8 for judging whether the towels and clothes are dried by humidity value or resistance value. The microcontroller 8 is an MCU, i.e. a microcomputer. Through the control of the microcomputer, the power is automatically cut off when drying, thus realizing the intelligentization of the electrical appliance.

[0026] The insulating sleeve 6 is made of high temperature resistant nylon material.

[0027] An isolation circuit and a contact circuit are provided on the circuit board 4. The isolation circuit can effectively avoid interference from the power supply by isolating the power supply, play a role in electrical safety protection, ensure personal safety, and prevent the danger of current passing through the human body; the isolation circuit and the contact circuit are weak current, and their voltage is a safe voltage for the human body.

[0028] The crossbars 2 are distributed on the frame 1 up and down.

[0029] The hot air device 11 includes a PTC heating element and a fan, and the circuit board MCU controls the opening and closing of the hot air device 11 through a relay switch and the like.

[0030] Second embodiment: See also Figure 2 The present towel and clothing drying rack with automatic power-off is different from the first embodiment in that: The detection device is a humidity sensor 5, which is used to detect the humidity value of towel clothes and feed back the humidity value to the circuit board 4; specifically, when the drying rack is in use, the towel clothes are placed on the cross bar 2, and the humidity sensor 5 detects the humidity value of the towel clothes through the contact end 9, and feeds back to the circuit board 4. The circuit board MCU determines whether the towel clothes are dried according to the humidity value. When the towel clothes have moisture, the humidity value is higher than the set threshold, and the circuit board MCU controls the hot air device 11 to start working. If the moisture has been dried, the humidity value will reach or be lower than the set threshold, and then the circuit board MCU determines that the towel clothes have been dried, so that the circuit board MCU turns off the hot air device 11 to achieve the effect of automatic power-off during drying.

[0031] The other parts not described are the same as those in the first embodiment and will not be analyzed and described again here.

[0032] The above is a preferred embodiment of the present invention, which shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A drying rack with automatic power off for drying towels and clothes, comprising a frame (1), the frame (1) being provided with a crossbar (2) for placing towels and clothes and a hot air device (11) for drying towels and clothes, characterized in that: A circuit board (3) is also provided on the frame (1); a detection device for detecting a resistance value or a humidity value is provided on the crossbar (2); a contact end (9) for contacting a towel or clothing is provided on the detection device; the contact end (9) protrudes from the crossbar (2); the circuit board (3) is electrically connected to the hot air device (11) and the detection device respectively; the detection device feeds back the resistance value or the humidity value to the circuit board (4); and the circuit board (4) controls the opening and closing of the hot air device (11) according to the resistance value or the humidity value.

2. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: An insulating sleeve (6) is provided on the crossbar (2), the insulating sleeve (6) is sleeved on the outer periphery of the detection device, and the contact end (9) of the detection device protrudes outside the insulating sleeve (6).

3. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: A lead terminal (10) is provided on the detection device, and the lead terminal (10) is connected to the circuit board (4) via an electric wire (7).

4. The towel and clothing drying rack with automatic power-off according to claim 3, characterized in that: The electric wire (7) is passed through the crossbar (2) and the frame (1).

5. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: The detection device comprises two or more metal contacts (3) which are arranged at intervals from each other. When the towel or clothing has moisture, the two or more metal contacts (3) are conductive and feed back the resistance value to the circuit board (4).

6. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: The detection device is a humidity sensor (5), and the humidity sensor (5) feeds back the humidity value to the circuit board (4).

7. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: The circuit board (4) is provided with a microcontroller (8) for judging whether the towels or clothes are dried according to the humidity value or the resistance value.

8. The towel and clothing drying rack with automatic power-off according to claim 2, characterized in that: The insulating sleeve (6) is made of high temperature resistant nylon material.

9. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: An isolation circuit and a contact circuit are provided on the circuit board (4).

10. The towel and clothing drying rack with automatic power-off according to claim 1, characterized in that: The crossbar (2) is distributed up and down on the frame (1).

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